From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-alma10-1.taild15c8.ts.net [100.103.45.18]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 12D7B3822AA; Fri, 19 Jun 2026 19:34:38 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=100.103.45.18 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1781897682; cv=none; b=S7rDIVn2h79Rx0gZff8cUYBTCTIYgvmKHxT389oCB/TYxDaiuFIMeF0z04Xf4M0w6in5CrA6kWoLSXAwxVNIAKoXNJmDUF7+zri1KVtO5Cf6pxBBuApoO4PJeuwpijcXk7PoVEPoHlkwCTDRGS9DEUPrMKjFSSLFbtv1v2jrhis= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1781897682; c=relaxed/simple; bh=B/56pUaar7MlCn4AjLaim6IUwqNS4vH8Ek8BdRTaadk=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=fIAbR+7SJcxA6VCf9V9f0MGJGPHkpCeqB0Gs3rgsgV3kR8W9OyBwl1B1IX3274Pf+eukFsU6SJ1uzP8oJk2g/p+fPvA25PVLx1AhPtduvP9uEFBVBB1WHK/mvjbcBefpPzBW8i9DnyzkiJwwd7pu82oDLEuLvXxdNwHK3B1ihWo= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=bNt+PiuR; arc=none smtp.client-ip=100.103.45.18 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="bNt+PiuR" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 50BE31F00AC4; Fri, 19 Jun 2026 19:34:37 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1781897678; bh=tOLvV8tB06/pvCLjG2dl48pE3b9/q317si70zxHfWTU=; h=From:To:Cc:Subject:Date:In-Reply-To:References; b=bNt+PiuRHcp1/q9m4TXokEOUpQ8IdcXtMFnOt3EY8sxikaiKbXsQPHt7/RQl8F/od bMI5JZrxr+T4lBr+kN7BfSwsZfh36msxkMA8nbpEnINZmodviU3FAMEioM8QlbgU11 ykKCJEy+VanGB3woPJA+/tmWIibQmDnRYaW+jRT/F8/t+Ue+WYk5sk7e63JTsX0oz3 +YIC0aFUhT3mJ7cPqefLGXNO5W9UQMj1JLxbg3CkH7VOVH71GQ43+Krb4c4vq0/SaN Y92sYr7lqBsjuRtXiwkDQtrWs0l58+qZjsLRxP+/s7PRdx9vi3msEoSfBQ9zt4H9Fz wesUyjV8XjX1g== From: SeongJae Park To: Cc: SeongJae Park , Andrew Morton , damon@lists.linux.dev, linux-kernel@vger.kernel.org, linux-mm@kvack.org Subject: [RFC PATCH 08/13] mm/damon/core: remove damon_verify_merge_regions_of() Date: Fri, 19 Jun 2026 12:33:53 -0700 Message-ID: <20260619193415.73833-9-sj@kernel.org> X-Mailer: git-send-email 2.47.3 In-Reply-To: <20260619193415.73833-1-sj@kernel.org> References: <20260619193415.73833-1-sj@kernel.org> Precedence: bulk X-Mailing-List: damon@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit damon_verify_merge_regions_of() is only for nr_accesses_bp validation. But nr_accesses_bp is no more being used for a real purpose. Remove the validation. Signed-off-by: SeongJae Park --- mm/damon/core.c | 15 --------------- 1 file changed, 15 deletions(-) diff --git a/mm/damon/core.c b/mm/damon/core.c index 9b8423056d879..f2db39aa34f4c 100644 --- a/mm/damon/core.c +++ b/mm/damon/core.c @@ -3107,20 +3107,6 @@ static void damon_merge_two_regions(struct damon_target *t, damon_destroy_region(r, t); } -#ifdef CONFIG_DAMON_DEBUG_SANITY -static void damon_verify_merge_regions_of(struct damon_region *r) -{ - WARN_ONCE(r->nr_accesses != r->nr_accesses_bp / 10000, - "nr_accesses (%u) != nr_accesses_bp (%u)\n", - r->nr_accesses, r->nr_accesses_bp); -} -#else -static void damon_verify_merge_regions_of(struct damon_region *r) -{ -} -#endif - - /* * Merge adjacent regions having similar access frequencies * @@ -3134,7 +3120,6 @@ static void damon_merge_regions_of(struct damon_target *t, unsigned int thres, struct damon_region *r, *prev = NULL, *next; damon_for_each_region_safe(r, next, t) { - damon_verify_merge_regions_of(r); if (abs(r->nr_accesses - r->last_nr_accesses) > thres) r->age = 0; else if ((r->nr_accesses == 0) != (r->last_nr_accesses == 0)) -- 2.47.3